.class1 {
  background: url([WRO-PREFIX]?id=classpath:img.gif);
  filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='[WRO-PREFIX]?id=classpath:../images/tabs/tabContent.png',sizingMethod='scale');
  background: url([WRO-PREFIX]?id=classpath:folder/img.gif);
  background: url('[WRO-PREFIX]?id=classpath:folder/img.gif');
  background: url("[WRO-PREFIX]?id=classpath:folder/img.gif");
  background: url([WRO-PREFIX]?id=classpath:folder/folder/img.gif) top left;
  background: url([WRO-PREFIX]?id=classpath:../img.gif) repeat-x;
  background: url([WRO-PREFIX]?id=classpath:../../img.gif) no-repeat right;
  BACKGROUND-IMAGE: url([WRO-PREFIX]?id=classpath:../img1.gif);
  background-image: url([WRO-PREFIX]?id=classpath:../img.gif);
  background: url([WRO-PREFIX]?id=classpath:../themes/andreas08/scripts/syntaxhighlighter-2/styles/wrapping.png) 0 1.1em no-repeat !important;
}
.class2 {
  background-IMAGE: URL([WRO-PREFIX]?id=classpath:img.gif);
  background: url([WRO-PREFIX]?id=classpath:img.gif) red;
  background: url([WRO-PREFIX]?id=classpath:folder/img.gif) no-repeat right;
  background: url(http://www.google.com/);
}

.inlineHelp {
  background:#B3B3B3 url("[WRO-PREFIX]?id=classpath:images/buttons/button_gry_bg.png") repeat-x scroll 0 -1px;
  background:#B3B3B3 url('[WRO-PREFIX]?id=classpath:images/buttons/button_gry_bg.png') repeat-x scroll 0 -1px;
  background:#B3B3B3 url([WRO-PREFIX]?id=classpath:images/buttons/button_gry_bg.png) repeat-x scroll 0 -1px;
}